How to write a program for swapping two strings without using 3rd variable and

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How to write a program for swapping two strings without
using 3rd variable and without using string functions.

Question Posted / 12

7 Answers
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How to write a program for swapping two strings without using 3rd variable and without using strin..

Answer / sivaraj

Questions is to swap the string not for integers so the
above answers are wrong.

Is This Answer Correct ?

47 Yes

7 No

How to write a program for swapping two strings without using 3rd variable and without using strin..

Answer / gaurav rustagi

#include <iostream>
#include <string.h>
using namespace std;
void swap ( char ** , char ** ) ;
int main ()
{
char * buyer= "US Dollars" ;
char * seller = "IN Ruppees" ;

cout << "Before swap, buyer has " << buyer;
cout << " and seller has " << seller << endl;

swap (buyer,seller);

cout << " After swap, buyer has " << buyer;
cout << " and seller has " << seller << endl;

return 0;
}
void swap ( char ** L , char ** R )
{
char ** temp = R;
R = L ;
L = temp ;
}

Is This Answer Correct ?

7 Yes

13 No

How to write a program for swapping two strings without using 3rd variable and without using strin..

Answer / sri

main()
{
int a=5,b=3;
a=a+b;
b=a-b;
a=a-b;
printf(" %d %d ",a,b);
getch();
}

Is This Answer Correct ?

33 Yes

42 No

How to write a program for swapping two strings without using 3rd variable and without using strin..

Answer / biswambar

main()
{
int a=5,b=3;
b=a+b;
a=b-a;
b=b-a;
printf(" %d %d ",a,b);
}

Is This Answer Correct ?

44 Yes

54 No

How to write a program for swapping two strings without using 3rd variable and without using strin..

Answer / saptarshi

void main()
{
char *p="string1";
char *q="string2";

p^=q^=p^=q;
printf("%s,%s",p,q);
}

swapping the base pointers of the two strings may work...
if they are declared as character arrays, then it is not
possible as we cannot modify the value of array base
pointers...

Is This Answer Correct ?

10 Yes

26 No

How to write a program for swapping two strings without using 3rd variable and without using strin..

Answer / ramu pasupuleti

#include<stdio.h>
#include<conio.h>
{
printf("enter a,b values");
a=a+b;
a=a-b;
b=a-b;
printf("%d%d",a,b);
getch();
}

Is This Answer Correct ?

2 Yes

18 No

How to write a program for swapping two strings without using 3rd variable and without using strin..

Answer / srinath, hyd

main()
{
int a=5,b=3;
a=a+b;
b=a-b;
a=a-b;
printf(" %d %d ",a,b);
getch();
}

Is This Answer Correct ?

7 Yes

26 No

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